Systems and methods for fluid sample collection and testing
A fluid sample testing apparatus has a housing with a test chamber and first and second fluid collector tubes and first and second fluid collectors in fluid communication with the test chamber. A sample holding container is in fluid communication with the second fluid collector tube. The first fluid collector is inserted into the first fluid collector tube and pressure is generated to release fluid from the first fluid collector into the test chamber, and air passes outside of the apparatus from the test chamber via an opening from the test chamber into the first fluid collector tube. The second fluid collector is inserted into the second fluid collector tube concurrently and pressure is generated to release fluid from the second fluid collector into the sample holding container, and air passes outside of the apparatus from the second fluid collector tube.
1. A fluid sample testing apparatus comprising:
a housing with a test chamber and a first fluid collector tube of a first diameter and a second fluid collector tube of a second diameter, wherein the test chamber is in fluid communication with the first fluid collector tube;
a sample holding container in fluid communication with the second fluid collector tube and removably secured to the second fluid collector tube;
first and second fluid collectors, wherein the first fluid collector is adapted for insertion into the first fluid collector tube and upon insertion into the first fluid collector tube pressure is generated to release fluid from the first fluid collector into the test chamber, wherein air passes outside of the apparatus from the test chamber via an opening from the test chamber into the first fluid collector tube, and wherein the second fluid collector is adapted for insertion into the second fluid collector tube concurrently with insertion of the first fluid collector into the first fluid collector tube and upon insertion into the second fluid collector tube pressure is generated to release fluid from the second fluid collector into the sample holding container;
a gasket positioned in the second fluid collector tube having an upper portion engaging a wall of the second fluid collector tube and a lower portion of smaller diameter than the upper portion extending into an opening of the sample holding container, wherein the gasket is positioned at an upper location in the second fluid collector tube upon insertion of the second fluid collector into the second fluid collector tube, wherein the gasket is positioned at a lower location in the second fluid collector tube after insertion of the second fluid collector into the second fluid collector tube and at the lower location a surface of the gasket that is positioned between the upper portion and the lower portion engages a top surface of the sample holding container and forms a seal with the sample holding container, wherein air passes outside of the apparatus from the second fluid collector tube before the gasket is positioned at the lower location.
2. The apparatus of claim 1 , wherein the first fluid collector has an upper sealing portion such that upon substantially complete insertion into the first fluid collector tube the upper sealing portion seals the opening between the test chamber and the first fluid collector swab tube.
3. The apparatus of claim 2 , wherein the first fluid collector has a lower sealing portion adapted to form a sliding seal between the lower sealing portion and a surface wall of the first fluid collector tube as the first fluid collector is inserted into the first fluid collector tube.
4. The apparatus of claim 3 , wherein the upper sealing portion is adapted to form a fixed seal for the opening between the test chamber and the first fluid collector tube and is of a shape different from the lower sealing portion.
5. The apparatus of claim 4 , wherein the upper sealing portion forms a stopper seal for the opening between the test chamber and the first fluid collector tube, and the lower sealing portion forms a syringe plunger seal between the lower sealing portion and the surface wall of the first fluid collector tube.
6. The apparatus of claim 5 , wherein the lower sealing portion is formed to have a plurality of spaced apart o-ring portions to form the syringe plunger seal.
7. The apparatus of claim 5 , wherein the lower sealing portion is formed to have a textured surface to form the syringe plunger seal.
8. The apparatus of claim 1 , further comprising a cassette for holding one or a plurality of test strips, wherein the cassette includes one or more channels for holding the one or more test strips and includes at least a first channel for holding a first strip, the first channel having a plurality of projections from each of two opposite side walls of the first channel, wherein the plurality of projections define a center portion in which the first strip is positioned, wherein the plurality of projections position the first strip to reduce or prevent contact between the first strip and the side walls of the first channel, wherein the first channel also has a floor having a plurality of raised portions, wherein the plurality of raised portions position the first strip to reduce or prevent contact between the first strip and the floor of the first channel.
9. The apparatus of claim 1 , wherein the second diameter is greater than the first diameter.
10. The apparatus of claim 1 , wherein the first and second fluid collectors each include a swab material at a lower end and a top cap, with an elongated stem extending from proximate to the swab material to proximate to the top cap, wherein the stem has an open cavity containing at least a moisture indication strip that contacts a portion of the swab material and changes color subsequent to contacting fluid absorbed by the swab material.